Data as of Nov 11, 2026
147.28.41.0/24
No anonymizer space · no proxy exits in 30 daysAmazon.com, Inc. · space held by Mimecast Services Limited
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin May 2026
from AS58362, after 5.6 years unannounced
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 147.28.32.0/20 | 4,096 | EU-MIME-01 | Mimecast Services Limited (ORG-MSL21-RIPE) · GB | LEGACY | Dec 2, 2020 | abuse@ |
| └ 147.28.41.0/24 | 256 | MIMECAST-147-28-41-0-24 | unknown | LEGACY | Jun 8, 2026 | abuse@ via EU-MIME-01 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Mimecast Services Limited
- Handle
- ORG-MSL21-RIPE
- Range
- 147.
28. 32. 0/ 20 - Registration type
- LEGACY
- Record created
- Dec 2, 2020
- Legacy
- yes
Origin network
AS16509
US
- Name
- Amazon.com, Inc.
- Type
- Hosting
- Registered
- May 4, 2000
- Domain
- amazon.com
- Website
- www.amazon.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 300
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Aug 2019
- Current origin since
- May 2026 · 5 mo
- Origin networks
- 2
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 147.
28. 41. 0/ 24 - Netname
- MIMECAST-147-28-41-0-24
- Registrant country
- SG
- Organization
- Not stated by the registry
- Type
- LEGACY
- Created
- Jun 8, 2026
- Updated
- Aug 11, 2026
- Maintainer
- MCSL-RIPE-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Jun 18, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
mimecast. com - Name
- Mimecast - CoreGrid
- Handle
- CGRD-RIPE